WR-5波导量热计的热泄漏评价

2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) Pub Date : 2018-09-01 DOI:10.1109/IRMMW-THZ.2018.8509873

Y. Tojima, M. Kinoshita, H. Iida, K. Fujii

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引用次数: 1

摘要

在本研究中，开发了一种用于测量WR-5波导波段(140-220 GHz)射频功率的精确量热计。为了实现高精度的量热测量，研究了热计绝热波导中热泄漏的影响。热响应由热产生由于损失的AW使用金箔屏蔽独立测量。通过分析AW的热响应和散射参数，估计了AW中漏热与总发热量之比的指数$\rho$。结果表明，在140 ~ 220 GHz频率范围内，指数$\rho$为0.50±0.05。

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Evaluation of Thermal Leakage in WR-5 Waveguide Calorimeter

In this study, an accurate calorimeter was developed for measuring radio-frequency power in the WR-5 waveguide band (140–220 GHz). To demonstrate a high-precision calorimetric measurement, the influence of heat leakage in an adiabatic waveguide (AW) of the calorimeter was investigated. Thermal responses by heat generation due to loss of the AW were independently measured using a gold foil shield. The index $\rho$ that represents the ratio of heat leakage to the total generated heat in the AW was estimated by analyzing the thermal response and scattering parameters of the AW. As a result, the index $\rho$ was found to be 0.50 ± 0.05 in the frequency range of 140–220 GHz.

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2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

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